The sub isn't actually renewed. It is just letting you know that it's charging for your monthly figure. It'll send a notice for each individual figure. So if you have the MOTUC sub and the 30th sub, you'll get three notices this month. It renews each month. If you don't have a sub, you shouldn't be getting the notices.

That still doesn't make sense, because I have the DCIE and MOTUC subs. I got 5 notices.